package main

import (
	"bufio"
	"os"
	"fmt"
)

func main() {
	reader := bufio.NewReader(os.Stdin)
	str, err := reader.ReadString('\n')
	if err != nil {
		fmt.Println("read stringfailed,err:", err)
	}
	fmt.Printf("read str succ,ret:%s", str)
}
